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Choose the most appropriate answer.

1. Which of these is a rabi crop?
a. gram
b. rice

2. Which of these is not a kharif crop?
a. wheat
b. maize
c. soybean
d. paddy

3. Which of these is the first step before growing a crop?
a. adding manures and fertilizers
b. sowing
c. preparation of soil
d. irrigation

4. Which one of the following is not true about ploughing?
a. It loosens the soil.
b. It aerates the soil.
c. It prevents soil erosion.
d. It allows easy penetration of roots into the soil.

5. Compost lacks which of the following nutrients?
a. nitrogen
b. phosphorus
c. potassium
d. all of these

6. Which of the following machines can be used to harvest a crop and also to beat out the grain from the chaff?
a. harvester
b. combine
c. thresher
d. harrow

7. Which one of the following does not add nutrients to the soil?
a. crop rotation
b. field fallow
c. manures
d. ploughing

8. Which of these is an organic substance obtained from the decomposition of plant and animal wastes?
a. manure
b. fertilizer
c. insecticide
d. weedicide

9. Which nutrients does the NPK fertilizer provide to the plants?
a. nitrogen
b. potassium
c. phosphorus
d. all of these

Sagot :

GinnyAnsweridn

Final answer:

This response clarifies different types of crops, soil preparation steps, crop-related tools, nutrients, and fertilizers commonly found in agriculture.


Explanation:

Rabi crop: Gram is a rabi crop.
Kharif crop: Wheat is not a kharif crop; maize, rice, and groundnut are.
First step before growing a crop: The first step is preparation of soil.
Ploughing: Preventing soil erosion is not true about ploughing.
Compost: Lacks nitrogen.
Crop harvest machine: Thresher can harvest a crop and beat out grain from chaff.
Plowing does not add nutrients to the soil.
Organic substance from decomposition: Manure is obtained from the decomposition of plant and animal wastes.
NPK fertilizer: Provides nitrogen, phosphorus, and potassium to plants.


Learn more about Crop cultivation and soil preparation here:

https://brainly.com/question/36873243


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